Finding the Fourth Proportional to 1,100.63, 1,518.89 and 658.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.63 : 1,518.89 = 658.53 : x
2. Step 2: Convert to fraction form
   1,100.63/1,518.89 = 658.53/x
3. Step 3: Cross multiply
   1,100.63x = 1,518.89 × 658.53
4. Step 4: Simplify right side
   1,100.63x = 1,000,234.63
5. Step 5: Solve for x
   x = 1,000,234.63/1,100.63
6. Step 6: Final answer
   x = 908.78